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ACM SIGCOMM Computer Communication Review

Infrastructure for the quantum internet

Seth Lloyd, Jeffrey H. Shapiro, Franco N. C. Wong, Prem Kumar, M. S. Shahriar, Horace P. Yuen

Published Oct 15, 2004• 135 citations
Publisher

Abstract

A team of researchers from the Massachusetts Institute of Technology (MIT) and Northwestern University (NU) is developing a system for long-distance, high- delity qubit tele-portation. Such a system will be required if future quantum computers are to be linked together into a quantum Internet. This paper presents recent progress that the MIT/NU team has made, beginning with a review of the teleportation architecture and its loss-limited performance analysis.

DOI
10.1145/1039111.1039118

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A recent proposal for realizing long-distance, high-fidelity qubit teleportation is reviewed. This quantum communication architecture relies on an ultrabright source of polarization-entangled photons plus a pair of trapped-atom quantum memories, and it is compatible with long-distance transmission over standard telecommunication fiber. Models are developed for assessing the effects of amplitude, phase, and frequency errors in the entanglement source, as well as fiber loss and imperfect polarization restoration, on the throughput and fidelity of the system.
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